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United States Patent | 6,188,804 |
Weldy ,   et al. | February 13, 2001 |
A method of processing a sampled input image having pixels which can have missing information at pixel locations to reconstruct an output image therefrom, including providing a mask for the sampled image to identify valid pixel locations; interpolating by convolution with at least one finite impulse response (FIR) filter(s) applied to the information at valid pixel locations to produce reconstructed information for non-valid pixel locations; and adaptively normalizing the reconstructed information for the non-valid pixel locations produced by applying the FIR filter(s) to the mask so that the valid pixels and the reconstructed information at non-valid pixel locations provide a reconstructed image.
Inventors: | Weldy; John A. (Rochester, NY); Loveridge; Jennifer C. (North Harrow, GB) |
Assignee: | Eastman Kodak Company (Rochester, NY) |
Appl. No.: | 080791 |
Filed: | May 18, 1998 |
Current U.S. Class: | 382/300; 382/254; 382/260; 382/265; 382/279 |
Intern'l Class: | G06K 009/32 |
Field of Search: | 382/300,254,260,265,279 |
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Benedetto and Frazier, Wavelets: Mathematics and Applications, CRC Press, 1994, pp. 336-359. IEEE Transactions on Image Processing, vol. 6, No. 4, Apr. 1997, `Computationally Attractive Reconstruction of Bandlimited Images from Irregular Samples` by Strohmer. Pratt, Digital Image Processing, John Wiley & Sons, 1978, pp. 111-120. Image Processing, by D. Pearson, published by McGraw-Hill (1991), pp. 22 to 26. |